Police arrested three people during warrants carried out in Bolsover, Chesterfield and Amber Valley, as part of a money laundering operation.
Officers raided six addresses on Thursday and say they recovered property including suspected contraband cigarettes, suspected drugs, a number of vehicles and other property.
A 38-year-old man was arrested at an address Bolsover on suspicion of possession of cannabis.
A 42-year-old man and a 43-year-old woman were arrested following a raid in Inkersall on suspicion of money laundering offences. They have all been bailed pending further inquiries.
l If you have information about someone in your neighbourhood who you suspect is living beyond their means contact Derbyshire police on the non-emergency number 101 or Crimestoppers on 0800 555 111.